<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<a href="C.html">C界面</a><br>
		<button type="button" onclick="go()">前进</button>
		<button type="button" onclick="back()">后退</button>
		<button type="button" onclick="reload()">刷新页面</button>
	</body>
	<script type="text/javascript">
		function go(){
			history.go(1);
		}
		function back(){
			history.back(-1);
		}
		function reload(){
			location.reload();
		}
	</script>
</html>
